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import sys
import types
try:
import urlparse
except ImportError: # pragma: no cover
from urllib import parse as urlparse
# True if we are running on Python 3.
PY3 = sys.version_info[0] == 3
if PY3: # pragma: no cover
string_types = str,
integer_types = int,
class_types = type,
text_type = str
binary_type = bytes
long = int
else:
string_types = basestring,
integer_types = (int, long)
class_types = (type, types.ClassType)
text_type = unicode
binary_type = str
long = long
if PY3: # pragma: no cover
from urllib.parse import unquote_to_bytes
def unquote_bytes_to_wsgi(bytestring):
return unquote_to_bytes(bytestring).decode('latin-1')
else:
from urlparse import unquote as unquote_to_bytes
def unquote_bytes_to_wsgi(bytestring):
return unquote_to_bytes(bytestring)
def text_(s, encoding='latin-1', errors='strict'):
""" If ``s`` is an instance of ``binary_type``, return
``s.decode(encoding, errors)``, otherwise return ``s``"""
if isinstance(s, binary_type):
return s.decode(encoding, errors)
return s # pragma: no cover
if PY3: # pragma: no cover
def tostr(s):
if isinstance(s, text_type):
s = s.encode('latin-1')
return str(s, 'latin-1', 'strict')
def tobytes(s):
return bytes(s, 'latin-1')
else:
tostr = str
def tobytes(s):
return s
try:
from Queue import (
Queue,
Empty,
)
except ImportError: # pragma: no cover
from queue import (
Queue,
Empty,
)
if PY3: # pragma: no cover
import builtins
exec_ = getattr(builtins, "exec")
def reraise(tp, value, tb=None):
if value is None:
value = tp
if value.__traceback__ is not tb:
raise value.with_traceback(tb)
raise value
del builtins
else: # pragma: no cover
def exec_(code, globs=None, locs=None):
"""Execute code in a namespace."""
if globs is None:
frame = sys._getframe(1)
globs = frame.f_globals
if locs is None:
locs = frame.f_locals
del frame
elif locs is None:
locs = globs
exec("""exec code in globs, locs""")
exec_("""def reraise(tp, value, tb=None):
raise tp, value, tb
""")
try:
from StringIO import StringIO as NativeIO
except ImportError: # pragma: no cover
from io import StringIO as NativeIO
try:
import httplib
except ImportError: # pragma: no cover
from http import client as httplib
try:
MAXINT = sys.maxint
except AttributeError: # pragma: no cover
MAXINT = sys.maxsize